The temperature drift in Hall current sensors can affect the accuracy of the sensor, especially in extreme high and low temperatures, which limits the application of Hall sensors. This article designs and implements a wide temperature range temperature drift compensation circuit suitable for Hall current sensors to address this issue. The temperature drift compensation circuit compensates for the temperature drift error of the Hall element by combining gain compensation with bandgap compensation, and using a load resistor that is consistent with the shape and material of the Hall element in the Hall voltage amplification circuit. At the same time, using the high and low temperature compensation current generated by the bandgap reference circuit to achieve temperature compensation for the tail current of the amplifier circuit, the Hall current sensor can maintain sensitivity stability over a wider temperature range. Adopting GF0. 18 μm BiCMOS process, simulation verification shows that under a 5 V power supply voltage, the circuit has a wide temperature range of -40 ℃ ~ 140 ℃ , a sensitivity temperature drift error of less than 0. 3%, and a temperature drift coefficient of 35 ppm/ ℃ . Compared to other temperature compensation designs, this design achieves compensation for high-order temperature errors of Hall sensors, resulting in a wider operating temperature range and smaller temperature drift errors. It does not require additional digital processing circuits and has high engineering application value.